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HCPL-7800 데이터시트 PDF




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부품번호 HCPL-7800 기능
기능 Isolation Amplifer
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HCPL-7800 데이터시트, 핀배열, 회로
HCPL-7800A/HCPL-7800
Isolation Amplifer
Datasheet
Lead (Pb) Free
RoHS 6 fully
compliant
RoHS 6 fully compliant options available;
-xxxE denotes a lead-free product
Description
The HCPL-7800(A) isolation amplifier family was designed
for current sensing in electronic motor drives. In a typical
implementation, motor currents flow through an external
resistor and the resulting analog voltage drop is sensed
by the HCPL-7800(A). A differential output voltage is
created on the other side of the HCPL-7800(A) optical
isolation barrier. This differential output voltage is pro-
portional to the motor current and can be converted to
a single-ended signal by using an op-amp as shown in
the recommended application circuit. Since common-
mode voltage swings of several hundred volts in tens of
nanoseconds are common in modern switching inverter
motor drives, the HCPL-7800(A) was designed to ignore
very high common-mode transient slew rates (of at least
10 kV/µs).
The high CMR capability of the HCPL-7800(A) isolation
amplifier provides the precision and stability needed to
accurately monitor motor current in high noise motor
control environ-ments, providing for smoother control
(less “torque ripple”) in various types of motor control
applications.
The product can also be used for general analog signal
isolation applications requiring high accuracy, stability,
and linearity under similarly severe noise con-ditions.
For general applications, we recommend the HCPL-7800
(gain tolerance of ±3%). For precision applications Avago
Technologies offers the HCPL-7800A with part-to-part
gain tolerance of ±1%. The HCPL-7800(A) utilizes sigma
delta (Σ−∆) analog-to-digital converter technology,
chopper stabilized amplifiers, and a fully differential
circuit topology.
Together, these features deliver unequaled isolation-
mode noise rejection, as well as excellent offset and
gain accuracy and stability over time and temperature.
This performance is delivered in a compact, auto-insert-
able, industry standard 8-pin DIP package that meets
worldwide regulatory safety standards. (A gull-wing
surface mount option #300 is also available).
Features
15 kV/µs Common-Mode Rejection at VCM = 1000 V
Compact, Auto-Insertable Standard 8-pin DIP Pack-
age
0.00025 V/V/°C Gain Drift vs. Temperature
0.3 mV Input Offset Voltage
100 kHz Bandwidth
0.004% Nonlinearity
Worldwide Safety Approval: UL 1577 (3750 Vrms/1min.)
and CSA, IEC/EN/DIN EN 60747-5-2
Advanced Sigma-Delta (Σ−∆) A/D Converter Technol-
ogy
Fully Differential Circuit Topology
Applications
Motor Phase and Rail Current Sensing
Inverter Current Sensing
Switched Mode Power Supply Signal Isolation
General Purpose Current Sensing and Monitoring
General Purpose Analog Signal Isolation
Functional Diagram
IDD1
VDD1 1
IDD2
8 VDD2
VIN+ 2
+
+ 7 VOUT+
VIN- 3
-
- 6 VOUT-
GND1 4
SHIELD
5 GND2
NOTE: A 0.1 μF bypass capacitor must be connected
between pins 1 and 4 and between pins 5 and 8.
CAUTION: It is advised that normal static precautions be taken in handling and assembly
of this component to prevent damage and /or degradation which may be induced by ESD.





HCPL-7800 pdf, 반도체, 판매, 대치품
Maximum Solder Reflow Thermal Profile
300
PREHEATING RATE 3˚C + 1˚C/–0.5˚C/SEC.
REFLOW HEATING RATE 2.5˚C ± 0.5˚C/SEC.
PEAK
TEMP.
245˚C
200
160˚C
150˚C
140˚C
100
2.5˚C ± 0.5˚C/SEC.
3˚C + 1˚C/–0.5˚C
PREHEATING TIME
150˚C, 90 + 30 SEC.
30
SEC.
30
SEC.
00 50
ROOM TEMPERATURE
100 150
TIME (SECONDS)
PEAK
TEMP.
240˚C
SOLDERING
TIME
200˚C
PEAK
TEMP.
230˚C
50 SEC.
200
TIGHT
TYPICAL
LOOSE
250
Note: Use of non-chlorine-activated fluxes is highly recommended.
Recommended Pb-Free IR Profile
Tp
TL
Tsmax
Tsmin
260 +0/-5 ˚C
217 ˚C
RAMP-UP
3 ˚C/SEC. MAX.
150 - 200 ˚C
ts
PREHEAT
60 to 180 SEC.
tp
tL
TIME WITHIN 5 ˚C of ACTUAL
PEAK TEMPERATURE
20-40 SEC.
RAMP-DOWN
6 ˚C/SEC. MAX.
60 to 150 SEC.
25
t 25 ˚C to PEAK
TIME (SECONDS)
NOTES:
THE TIME FROM 25 ˚C to PEAK TEMPERATURE = 8 MINUTES MAX.
Tsmax = 200 ˚C, Tsmin = 150 ˚C
Note: Use of non-chlorine-activated fluxes is highly recommended.


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HCPL-7800 전자부품, 판매, 대치품
DC Electrical Specifications
Unless otherwise noted, all typicals and figures are at the nominal operating conditions of VIN+ = 0, VIN- = 0 V, VDD1 =
VDD2 = 5 V and TA = 25°C; all Min./Max. specifications are within the Recommended Operating Conditions.
Parameter
Input Offset Voltage
Symbol
VOS
Min. Typ.
-2.0 0.3
-3.0
Magnitude of Input Offset
Change vs. Temperature
Gain (HCPL-7800A)
Gain (HCPL-7800)
|DVOS/DTA|
3.0
G1 7.92 8.00
G3 7.76 8.00
Max. Unit Test Conditions
2.0 mV TA = 25°C
3.0 -40°C < TA < +85°C,
-4.5 V < (VDD1, VDD2) < 5.5 V
10.0 µV/°C
Fig. Note
1,2
32
8.08 V/V
8.24
-200 mV < VIN+ < 200 mV,
TA = 25°C,
4,5,6 3
Magnitude of VOUT
Gain Change vs.Temperature
VOUT 200 mV Nonlinearity
Magnitude of VOUT
200 mV Nonlinearity
Change vs. Temperature
VOUT 100 mV Nonlinearity
Maximum Input Voltage
before VOUT Clipping
Input Supply Current
Output Supply Current
|DG/DTA|
NL200
|dNL200/dT|
NL100
|VIN+|MAX
IDD1
IDD2
0.00025
V/V/°C
0.0037
0.0002
0.35 %
-200 mV < VIN+ < 200 mV
% / °C
4
7,8 5
0.0027 0.2 %
308.0
mV
10.86
11.56
16.0 mA
16.0
-100 mV < VIN+ < 100 mV
VIN+ = 400 mV
VIN+ = -400 mV
6
9
10 7
8
Input Current
Magnitude of Input
Bias Current vs.
Temperature Coefficient
Output Low Voltage
Output High Voltage
Output Common-Mode
Voltage
Output Short-Circuit
Current
Equivalent Input Impedance
VOUT Output Resistance
Input DC Common-Mode
Rejection Ratio
IIN+
|dIIN/dT|
VOL
VOH
VOCM
|IOSC|
RIN
ROUT
CMRRIN
-0.5 5.0 µA
0.45 nA/°C
1.29
3.80
2.2 2.545
18.6
500
15
76
V
V
2.8 V
mA
kW
W
dB
11 9
10
11
12


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